Derbyshire 50se, 6". Spondon, 1919/1910 (sic), black outline, blue geology.
Derbyshire 50se, 6". Spondon, 1919/1910 (sic), black outline, blue geology. In good condition.
About the England Six Inch County Series (later edition)
These early 20th century geological maps are at 1:10,560 scale, based on county layout. Each sheet covers 2 x 3 miles in considerable detail.